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Fig. 11 31-year-old woman in whom coronal whole-body FDG PET
examination shows symmetrically increased uptake in supraclavicular regions
(white arrows), in keeping with activity in brown fat. Increased
uptake is also seen in mediastinum (black arrow). This corresponded
with areas of mediastinal adipose tissue on coregistered CT images (not
shown), again in keeping with brown fat rather than lymphadenopathy. (Courtesy
of B. Franc, University of California, San Francisco, CA)